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ultrasonic field
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ultrasonic field
Encyclopedia
工学
水声计量
释
ultrasonic field
超声声场
充满超声波的空间或超声振动所波及的部分介质。具有一定的空间大小和形状,根据超声应用可将其分为医用超声换能器声场和工业超声换能器声场。
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population planning
population policy
population pressure
population process
population protected mode of medicinal resources
Population pyramid
Population quantity
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Population Registers
population regulation
population resource
population-shift algorithm
population size
population sociology
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Population systems engineering
population systems engineering
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